EP0572896A3 - Magnetic developer and recognition method of magnetic-ink character - Google Patents

Magnetic developer and recognition method of magnetic-ink character Download PDF

Info

Publication number
EP0572896A3
EP0572896A3 EP19930108365 EP93108365A EP0572896A3 EP 0572896 A3 EP0572896 A3 EP 0572896A3 EP 19930108365 EP19930108365 EP 19930108365 EP 93108365 A EP93108365 A EP 93108365A EP 0572896 A3 EP0572896 A3 EP 0572896A3
Authority
EP
European Patent Office
Prior art keywords
magnetic
recognition method
ink character
developer
magnetic developer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19930108365
Other versions
EP0572896B1 (en
EP0572896A2 (en
Inventor
Tetsuhito Kuwashima
Satoshi Matsunaga
Yukari Ishibashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Publication of EP0572896A2 publication Critical patent/EP0572896A2/en
Publication of EP0572896A3 publication Critical patent/EP0572896A3/en
Application granted granted Critical
Publication of EP0572896B1 publication Critical patent/EP0572896B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/087—Binders for toner particles
    • G03G9/08702—Binders for toner particles comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • G03G9/08726—Polymers of unsaturated acids or derivatives thereof
    • G03G9/08728—Polymers of esters
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/0821—Developers with toner particles characterised by physical parameters
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/083—Magnetic toner particles
    • G03G9/0835—Magnetic parameters of the magnetic components
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/087—Binders for toner particles
    • G03G9/08775—Natural macromolecular compounds or derivatives thereof
    • G03G9/08782—Waxes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Developing Agents For Electrophotography (AREA)
EP93108365A 1992-05-25 1993-05-24 Magnetic developer and recognition method of magnetic-ink character Expired - Lifetime EP0572896B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP156222/92 1992-05-25
JP15622292 1992-05-25

Publications (3)

Publication Number Publication Date
EP0572896A2 EP0572896A2 (en) 1993-12-08
EP0572896A3 true EP0572896A3 (en) 1994-06-08
EP0572896B1 EP0572896B1 (en) 1998-01-07

Family

ID=15623030

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93108365A Expired - Lifetime EP0572896B1 (en) 1992-05-25 1993-05-24 Magnetic developer and recognition method of magnetic-ink character

Country Status (3)

Country Link
US (1) US5952138A (en)
EP (1) EP0572896B1 (en)
DE (1) DE69316086T2 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0662640B1 (en) * 1993-12-29 2001-03-21 Canon Kabushiki Kaisha Toner for developing electrostatic images and heat fixing method
US5605778A (en) * 1995-04-07 1997-02-25 Canon Kabushiki Kaisha Toner with wax component for developing electrostatic image
US5702859A (en) * 1995-05-16 1997-12-30 Tomoegawa Paper Co., Ltd. Electrophotographic toner and process for the production thereof
US6120961A (en) * 1996-10-02 2000-09-19 Canon Kabushiki Kaisha Toner for developing electrostatic images
WO1999066450A1 (en) * 1998-06-16 1999-12-23 Source Technologies, Inc. System for concurrent check validation and micr encoding
WO2000070408A1 (en) * 1999-05-17 2000-11-23 Flint Ink Corporation Liquid magnetic image character recognition developer
US6331372B1 (en) 1999-10-08 2001-12-18 Lexmark International, Inc. Toner particulates comprising an ethylene propylene wax
US6613490B2 (en) 2000-10-31 2003-09-02 Canon Kabushiki Kaisha Toner, image forming method and process-cartridge
US6610451B2 (en) * 2000-12-26 2003-08-26 Heidelberger Druckmaschinen Ag Development systems for magnetic toners having reduced magnetic loadings
US6696212B2 (en) * 2001-03-27 2004-02-24 Heidelberger Druckmaschinen Ag Single component toner for improved magnetic image character recognition
US7094513B2 (en) * 2002-12-06 2006-08-22 Orient Chemical Industries, Ltd. Charge control agent and toner for electrostatic image development

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5633655A (en) * 1979-08-28 1981-04-04 Hitachi Metals Ltd Magnetic toner
EP0417016A2 (en) * 1989-09-05 1991-03-13 Tomoegawa Paper Co. Ltd. Toner for developing static charge images
EP0468525A1 (en) * 1990-07-27 1992-01-29 Canon Kabushiki Kaisha Magnetic developer, electrophotographic apparatus and recognition method of magnetic ink character
EP0531990A1 (en) * 1991-09-11 1993-03-17 Canon Kabushiki Kaisha Toner for developing electrostatic image and heat-fixing method

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58189646A (en) * 1982-04-01 1983-11-05 Canon Inc Magnetic toner
FR2529580B1 (en) * 1982-06-30 1986-03-21 Pechiney Aluminium ELECTROLYSIS TANK FOR THE PRODUCTION OF ALUMINUM, COMPRISING A FLOATING CONDUCTIVE SCREEN
JPS597379A (en) * 1982-07-05 1984-01-14 Canon Inc Recorder
JPH0715596B2 (en) * 1986-05-15 1995-02-22 キヤノン株式会社 Method for producing polymerized toner
JPH0827551B2 (en) * 1986-10-27 1996-03-21 キヤノン株式会社 Insulating magnetic capsule toner
JPH07120071B2 (en) * 1988-02-29 1995-12-20 キヤノン株式会社 Magnetic toner
EP0438181B1 (en) * 1990-01-19 1996-04-03 Canon Kabushiki Kaisha Electrostatic image developing toner and fixing method
JPH04166850A (en) * 1990-10-30 1992-06-12 Canon Inc Micr printer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5633655A (en) * 1979-08-28 1981-04-04 Hitachi Metals Ltd Magnetic toner
EP0417016A2 (en) * 1989-09-05 1991-03-13 Tomoegawa Paper Co. Ltd. Toner for developing static charge images
EP0468525A1 (en) * 1990-07-27 1992-01-29 Canon Kabushiki Kaisha Magnetic developer, electrophotographic apparatus and recognition method of magnetic ink character
EP0531990A1 (en) * 1991-09-11 1993-03-17 Canon Kabushiki Kaisha Toner for developing electrostatic image and heat-fixing method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 5, no. 88 (P - 65) 9 June 1981 (1981-06-09) *

Also Published As

Publication number Publication date
DE69316086D1 (en) 1998-02-12
EP0572896B1 (en) 1998-01-07
US5952138A (en) 1999-09-14
DE69316086T2 (en) 1998-05-20
EP0572896A2 (en) 1993-12-08

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